The $379 million domestic gross is the "average" or "typical" gross. If the movie's performance was exactly what CotT and F7 indicated it would be, given a $53.9 million opening day, then the movie would be expected to end up with $379 million. However, obviously, it is not performing exactly as the past would indicate, and my time series model is attempting to forecast a trend for its future behavior based on its over- or under-performance relative to the "average" each day. Under that forecast, as it stands right now, the movie will end with $285 million. I believe that number will raise once the drops start to level out a bit, but until then I can't correct it.